package com.ke.interceptor;


import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
//跨域设置文件
@Component
    @WebFilter(urlPatterns = "/*", filterName = "CorsFilter")
    public class CrossDomainFilter implements Filter {

        @Override
        public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
            HttpServletResponse response = (HttpServletResponse) res;
            HttpServletRequest reqs = (HttpServletRequest) req;
            String curOrigin = reqs.getHeader("Origin");
            response.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
            response.setHeader("Access-Control-Allow-Credentials", "true");
            response.setHeader("Access-Control-Allow-Methods", "POST, GET, PATCH, DELETE, PUT");
            response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
            chain.doFilter(req, res);
        }


        @Override
        public void init(FilterConfig filterConfig) {
            System.out.println("=======================================================chulaile=================================================");
        }

        @Override
        public void destroy() {}

    }


